Scientific Investigation Terms

Which best describes accuracy in a scientific investigation?

• The closeness of results between repeated measurements

• The ability to produce the same measurement results under the same conditions

• A measure of how close a measurement value is to the true value

• The ability to produce the same measurement results if a different group were to run the experiment

Which term describes the repeatability or reproducibility of scientific measurements?

• Accuracy

• 
  Precision

• Resolution

• Validity

What does repeatability refer to in scientific measurements?

• The ability to produce the same measurement results under different conditions

• Similar results if repeated measurements under the same conditions including the same experimenter

• The smallest change in the quantity being measured that causes a perceptible change

• 
  The validity of an experiment's design and implementation

What is the term for receiving similar results if the same experiment was repeated by different people?

• Precision

• Accuracy

• Resolution

• Reproducibility

What does resolution refer to in the context of scientific measurements?

• The smallest measurement in which an instrument is able to make

• The ability to produce the same measurement results under different conditions

• The validity of an experiment's design and implementation

• The closeness of agreement between repeated measurements under the same conditions

Which type of error affects the precision of a measurement and is unpredictable?

• Systematic errors

• Reproducibility errors

• Random errors

• Resolution errors

What is a systematic error in scientific measurements?

• An error that affects the precision of a measurement and is unpredictable

• An error that causes readings to differ from the true value in a consistent manner

• An error that occurs due to the smallest change in the quantity being measured

• An error that affects the validity of an experiment's design and implementation

What is the purpose of repeated measurements in experiments?

• To reduce the effect of random errors

• To increase the number of data points

• To make the experiment more complex

• To ensure the experiment is conducted faster

A scientific investigation is considered valid if...

• Only the independent variable is allowed to change whilst controlled variables remain unchanged

• Controlled variables have been allowed to change

• Observer bias is allowed to be included in results

• you slip a $20 note to your teacher along with your investigation results

Concordant results help with...

• Accuracy

• Precision

• Reproducibilty

• Repeatability